Table 1 Summary of material properties of the components.

From: Biomechanical effects of deltoid muscle atrophy on rotator cuff tissue: a finite element study

Component

Material type

Material parameters

Scapula

Isotropic elastic

E = 15,000 MPa

ν = 0.3

Clavicle

 

E = 15,000 MPa

ν = 0.3

Humerus

 

E = 17,000 MPa

ν = 0.3

Cancellous bone

 

E = 1000 MPa

ν = 0.3

Rotator cuff tissue

Non-linear hyperelastic & incompressible (Neo-Hookean)

 

Deltoid muscle

 Acromioclavicular ligament

Nonlinear elastic

E = 10.4 MPa

ν = 0.3

 Coracoclavicular ligament

Nonlinear elastic

E = 9.6 MPa

ν = 0.3

 Glenohumeral ligament

Nonlinear elastic

E = 150 MPa

ν = 0.3